CAPE Biology Unit 1 · 2007 · Paper 1 · Question Q14
Which of the following pairs of statements explains the mode of action of enzymes? I. They are globular proteins and as a result are soluble. II. They bond to the substrate molecules at their active sites. III. They break down substrate molecules into products. IV. They lower the activation energy for the reaction.
- (A)I and II only
- (B)II and III only
- (C)II and IV only
- (D)III and IV only
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